I had the very same thing happen to me. I've been working on a file for some time. I have just gone to re-open it to continue working and it appears that I have lost everything due to the file being corrupt or damaged.

Is there a way to recover old versions of the document by going back to a previously saved version? I haven't had a file corrupt on me like this for no reason is years. I had thought we had gone much past this with redundancies built into these programs. In the old days, at least I would have been able to back-up my data onto a hard disk to at least get some version of the file back.